Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, Belo Horizonte, MG, 6627, 31270-901, Brazil.
Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil.
Probiotics Antimicrob Proteins. 2023 Oct;15(5):1180-1192. doi: 10.1007/s12602-022-09973-x. Epub 2022 Jul 30.
Functional foods containing probiotics are generally administered as dairy products. Non-dairy beverages are another possibility, but probiotic functionality must be confirmed in such vehicles. In the present study, a craft wheat beer brewed with the probiotic yeast Saccharomyces cerevisiae UFMG A-905 (905) was evaluated in a murine model of Salmonella Typhimurium infection. Unfiltered or filtered beer brewed with 905, a commercial wheat beer used as a negative control, or saline were administered orally to mice before and during oral S. Typhimurium challenge. High fecal levels of yeast were only counted in mice treated with the unfiltered 905 beer, which also had reduced mortality and body weight loss due to S. Typhimurium infection. Increased levels of intestinal IgA, translocation to liver and spleen, liver and intestinal lesions, pro-inflammatory cytokines in liver and ileum, and hepatic and intestinal myeloperoxidase and eosinophilic peroxidase activities were observed in animals infected with S. Typhimurium. All these parameters were reduced by the treatment with unfiltered 905 beer. In conclusion, the results show that a craft wheat beer brewed with S. cerevisiae UFMG A-905 maintained the probiotic properties of this yeast when administered orally to mice challenged with S. Typhimurium.
含益生菌的功能性食品通常作为乳制品进行给药。非乳制品饮料是另一种可能性,但此类载体中的益生菌功能必须得到确认。在本研究中,用益生菌酵母 Saccharomyces cerevisiae UFMG A-905(905)酿造的精酿小麦啤酒在鼠伤寒沙门氏菌感染模型中进行了评估。在口服鼠伤寒沙门氏菌挑战之前和期间,用未经过滤或经过滤的含 905 的啤酒(用作阴性对照的商业小麦啤酒)或生理盐水对小鼠进行口服给药。仅在接受未经过滤的 905 啤酒处理的小鼠中计数到高粪便水平的酵母,该啤酒还由于鼠伤寒沙门氏菌感染而降低了死亡率和体重减轻。在感染鼠伤寒沙门氏菌的动物中,观察到肠道 IgA 水平升高、向肝和脾转移、肝和肠损伤、肝和回肠中的促炎细胞因子以及肝和肠髓过氧化物酶和嗜酸性过氧化物酶活性增加。所有这些参数均通过用未经过滤的 905 啤酒处理得到降低。总之,结果表明,用 UFMG A-905 酿酒酵母酿造的精酿小麦啤酒在口服给予感染鼠伤寒沙门氏菌的小鼠时,保持了该酵母的益生菌特性。
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